Spring Valley Weather Forecast

    • 59
    • 62

    Rain Showers

    • 56
    • 65

    Rain Showers

    • 50
    • 64

    Mostly Cloudy

    • 45
    • 60

    Chance Rain Showers

    • 44
    • 59

    Partly Sunny

    • 49
    • 63

    Partly Sunny

    • 52
    • 65

    Partly Sunny

Today 18 Sep Fillmore

Partly cloudy. Lows in the lower 50s. Highs in the upper 60s.

Tonight 18 Sep Fillmore

Showers. Thunderstorms likely this Evening, then a chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall this evening. Some Thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible. Near steady temperature around 60. East Winds 10 to 15 Mph. Chance of rain 100 percent.

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Spring Valley Temperature Statistics

September Temperature

Preston, Fillmore County Airport (10.6 miles)

  • Lowest 14 September, 2026

    44.6 °F

  • Average September

    68.4 °F

  • Highest 4 September, 2026

    89.6 °F

Climate (2021–2026)

Preston, Fillmore County Airport (10.6 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    56 °F
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